Using Hw Enable For Cam Tracks - Siemens SIMOTION Function Manual

Cam Track TO - Part II
4.3 Configuring the TO Cam Track
5. Enter the calculated actuation times as activationtime for the start of output cam and as
6. After you have determined the activation time and the deactivation time for the output of
4.3.12

Using HW enable for cam tracks

You can make the output of cam tracks dependent on a hardware-supported enable (only for
TM17 High Feature). The cam track is, for example, output cyclically on the TM17 High Feature.
The enable signal (level or edge-controlled) triggers output of the cam track at the output of
the TM17 High Feature.
A measuring input TO can be configured to implement an edge-controlled enable at the enable
input of the TM17 High Feature. In this case, the cam track is only enabled at the output of the
TM17 High Feature once the configured measuring signal occurs.
A hardware enable can be configured for Cam Track TOs, as well as Output Cam TOs. The
procedure to be used is described below using the example of a Cam Track TO. Subject to
any stated restrictions, this procedure is also used for Output Cam TOs.
In the case of edge-controlled HW enable of a cam output, the input bit actualInputState of the
assigned "Measuring input" does not provide its terminal level but the level of the enable signal.
Note
You will find more information on the hardware enable in the
High Feature Commissioning Manual.
See also
Absolute level-controlled (TM17 High Feature) (Page 119)
Absolute edge-controlled (TM17 High Feature) (Page 120)
118
deactivationtime for the end of output cam. Note that the actuation time must be entered
as a negative when the output time is to be before the programmed output cam switching
time.
output cam, you should perform a control measurement and check the result.
Note
Depending on the application, it may be, e.g. with eccentric presses, that there is no linear
relationship between dead time and velocity (e.g. non-linear response of an applied
brake). You have to dynamically adapt the dead time to the respective velocity for these
applications. This can be implemented in the application with a user program. After the
actuation time has been changed, you have to activate the output cam again with
_enableOutputCam or the cam track with _enableCamTrack.
Terminal Modules TM15 / TM17
Output Cams and Measuring Inputs
Function Manual, 04/2014